PCH and exec-shield...

[Mike Stump]

On Tuesday, March 16, 2004, at 03:50 PM, Zack Weinberg wrote:
> To ask a tangential question, if (as presently implemented) PCH has to
> reload data structures at the original address, why is there a problem
> with hashing pointers?

We swizzle on PCH write.  PCH write can be amortized across multiple 
uses better, also, during writing, memory is hot.  During load, we 
could have to bring in (from disk/network) and COW it.